Lock-case.



P ATENBD PEB. 18, 1,908.

E. R. TOWNE.

LOCK OASE.

v uPLIoATIoN HYLED APB.. s. 19m.

[NVENTOR Wim/55555 cut or groove in t .furry PATENT FFiltjn.

d: TOWN-E MANUFACTURING LOCK-CASE.

sirenes.

Speciceton of Letters Patent.

Patented Feb. 18, 1908.

Application ned April 8.1907. serial n5361005.

To all 'whom it 'ma-f confer/L.' A I it lmown that l', HENRY R. ToWNn,of i New York, in the county of New York and i of .New York, haveinvented certain I new und useful Improvements in Lock-l Ceses; and l dohereby declsre the following to be n fuli, cle-er, exact description ofthe invention, such es will enable othersl skilled. in the art to whichit epperteins to l inelie and use the seme. l n l My ii ention relu s'to on in lool; ce es end the method et attaching e l farce plete orcover to ther-.ese end it consists (l improvement broadly in providingthe cese carrying the parts of the lock, with en opening through whichthe operetire parte may be inserted, the seid opening boing surroundedby en undercut or grooved shoulder adapted to receive the edge of econcave-convex fece. `plete or cover, and then spreading or lietteningthe fece pleteor cover so es to cause the outer edges of seine to enterthe under he shoulder end thus perfece plete or cover to the msnentlyloch the loc-lt casing.

in the accompanying drswing, Figure lis e. vier. in elevation-of theloch. Fig. 2 is a view in elevstion with one fece plete reiner Fig. 3 iss view in section through the l and Fig. it is s view of one of the feceplates.

le l have for ther pur ose of conveno'wn, and will describe my improve,-:ent' iA connection with pcdlocks, l would it understood that it isadapted to any l type of loch the cese of which hes en l ening for theinsertion of the assembled ve ports of 'the lock, and s cover or feceplete for closing seid opening.

l represents the loch cese which in the it instance, is circular in formand is `ed on its periphery with two openings fom Ae passage of theshrinks or ends of the elif... ond rotating shackle. Une member of tinsshackle olthis particular lock, is adopted to cuter vone fnoeninor andwhen locked, rests with its iree end t erein, while i the other memberis engaged by the locking mechanism and is released and retracted orflocked thereby. The locking mechanism is carried by s. freine 3 insertedwithin the cavity in the end the letter is provided with e. seat andundercut shoulder 5 extending around all sides of the opening in theface of the casing. In thepresent instance the cavity in the loclr caseand the sent 4 and shoulder 5 are circular inform but l would have itunderstood that they may be oval, angular or any other shape desired.

The face plete or cover 6 is mede slightly dish shaped and is of e sizeto snugly ht on the sent- 4 with its beveled edge 7 resting under theundercut shoulder 5, and it may if desired be rib'ied or corrugated forstrengthen- ,65 ing seme` After the operating parts of the lock havebeen properly located and secured within the cese, .the face plete orcover which is made of sheet motel, is placed in position on the seat 4with its convex fece out, and pressure is applied to the latterpreferably at the center, whichcauses the'face plete to spread or Hattenout and thus become iirmly and permanently locked to the case.

In the present instencel have shown the lock with its two feces closedby such plates, but it is evident thatone face may be enst or otherwiseformed integral with the case, thus leaving oneisce only to be closed bymy improved fece plate.

Having fully described my invention what I claim as new and desire tosecure by Letters- Patent, is

l. A lock comprising a casing having an opening in one face thereof,lend en undercut shoulder surrounding said opening, and a fece pletehaving its outer edge forced under said shoulder, whereby the platebecomes permanently fastened to the casing.

2. A loc comprising a casing, having a. seat and undercut shoulder, anden expandedl face plete resting on the seat with its outer edge undersaid undercut shoulder.

A lock comprising a. easing having a circuler opening in one face, enda. continuons seat and shoulder around said opening, and en expandedplate conforming in shape to the shape of said opening, the said pleteresting on the seat with its edge under said undercut shoulder.

In testimony whereof, 1 have signed this specification in the presenceof two subscribe HENRY R. TOWNE. l/Vitnesses:

ing Witnesses.

WM. H. CUDLIPP, F, C. SoUrREs.

